Extreme Heat and Fire Weather Conditions in the West; Heavy Rain in the Southeast; Poor Air Quality

Extreme heat will begin to peak across the Desert Southwest. Multiple days of hot, dry and windy conditions are expected to bring fire weather concerns for portions of the Four Corners region into the central Great Basin and Rockies. Heavy rainfall and a flash flooding threat continues in the Southeast. Poor air quality persists from the Upper Midwest into the Northeast due to wildfire smoke. Read More >

Current conditions at

Tri-Cities Airport (KPSC)

Lat: 46.26955°NLon: 119.11813°WElev: 397.0ft.

Clear

72°F

22°C

Humidity 44%
Wind Speed SSW 6 MPH
Barometer 29.99 in (1015.58 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 06 Aug 04:53 AM PDT
Extended Forecast for

Prosser WA

  • Overnight

    Overnight: A 30 percent chance of showers.  Cloudy, with a low around 61. Southwest wind around 6 mph.

    Low: 61 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A 30 percent chance of showers, mainly before 2pm.  Mostly cloudy, with a high near 81. Southwest wind 6 to 11 mph, with gusts as high as 18 mph.

    High: 81 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers before 8pm.  Partly cloudy, with a low around 53. West wind 6 to 11 mph.

    Low: 53 °F

    Slight Chance
    Showers then
    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 81. West wind 6 to 9 mph.

    High: 81 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 50. West wind 6 to 9 mph.

    Low: 50 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 91.

    High: 91 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

Detailed Forecast

Overnight
A 30 percent chance of showers. Cloudy, with a low around 61. Southwest wind around 6 mph.
Wednesday
A 30 percent chance of showers, mainly before 2pm. Mostly cloudy, with a high near 81. Southwest wind 6 to 11 mph, with gusts as high as 18 mph.
Wednesday Night
A 20 percent chance of showers before 8pm. Partly cloudy, with a low around 53. West wind 6 to 11 mph.
Thursday
Sunny, with a high near 81. West wind 6 to 9 mph.
Thursday Night
Clear, with a low around 50. West wind 6 to 9 mph.
Friday
Sunny, with a high near 87.
Friday Night
Mostly clear, with a low around 55.
Saturday
Mostly sunny, with a high near 91.
Saturday Night
Mostly clear, with a low around 58.
Sunday
Sunny, with a high near 96.
Sunday Night
Mostly clear, with a low around 63.
Monday
Sunny and hot, with a high near 100.
Monday Night
Mostly clear, with a low around 64.
Tuesday
Sunny, with a high near 97.
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ABOUT THIS FORECAST

 
Point Forecast:
Prosser WA
 46.21°N 119.75°W (Elev. 741 ft)
4:20 am PDT Aug 6, 2025
5am PDT Aug 6, 2025-6pm PDT Aug 12, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database